Data related to helicopter flights

Hi,

I don't know if that's the kind of question that fits the OpenSky forums but I was unlucky elsewhere and so I take my chance here

We try to research information about helicopter flights. One of the question we have is related to helicopter transport companies. Is there any public listing with the id's of the fleet of helicopters for a specific company?

Also, we'd like to learn if there's a way to spot helicopters départing or arriving at a specific airport.

Any clue would be welcomed!

Many thanks !

Sorry for the late post. You _might_ have some luck if you ask on opendata.stackexchange.com/ for data on the icao24.

In fact, I like this idea so much that I asked the question for you

Too good!

I'll watch for answers there as well, many thanks

Alain